{ "id": "2312.12779", "version": "v1", "published": "2023-12-20T05:36:47.000Z", "updated": "2023-12-20T05:36:47.000Z", "title": "A distinction between the paraboloid and the sphere in weighted restriction", "authors": [ "Alex Iosevich", "Ruixiang Zhang" ], "categories": [ "math.CA", "math.CO", "math.NT" ], "abstract": "For several weights based on lattice point constructions in $\\mathbb{R}^d (d \\geq 2)$, we prove that the sharp $L^2$ weighted restriction inequality for the sphere is very different than the corresponding result for the paraboloid. The proof uses Poisson summation, linear algebra, and lattice counting. We conjecture that the $L^2$ weighted restriction is generally better for the circle for a wide variety of general sparse weights.", "revisions": [ { "version": "v1", "updated": "2023-12-20T05:36:47.000Z" } ], "analyses": { "keywords": [ "paraboloid", "distinction", "lattice point constructions", "general sparse weights", "wide variety" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }